Polished Tiger Iron slab TI370 striped jasper Dimensions approximately 85 mm x

Dimensions approximately 85 mm x 45 mm x 45 mm deep

DO172  Dendritic Opal rough rock

Dimensions at widest points approximately 290 mm  x 150 mm wide x 9 mm thick

190 mm x 110 mm x 80 mm thick

Polished Tiger Iron slab TI370 striped jasper Dimensions approximately 85 mm xTI370 Tiger Iron slab, polished on one side. Dimensions at widest points approximately 190 mm x 70 mm x 9 mm thick. Weighs: 367 grams From the Cleaverville Formation, Ord Ranges near Port Hedland, Western Australia. Age is over 3 billion years. Tiger iron is a banded iron formation (BIF) or jaspilite that has alternating layers of black and brown hematite magnetite, red jasper and chatoyant golden tiger eye.